static function loadLocales($lang)
 {
     bindtextdomain("perroquet-website", dirname($_SERVER['SCRIPT_FILENAME']) . '/locales');
     bind_textdomain_codeset("perroquet-website", 'UTF-8');
     textdomain("perroquet-website");
     $languageList = Config::getLanguageList();
     if (!$languageList[$lang]['choosable']) {
         $lang = $languageList[$lang]['ref'];
     }
     setlocale(LC_ALL, $languageList[$lang]['key']);
     LanguageManager::$lang = $lang;
 }